A homeless person may submit an application for PO Boxâ„¢ service to a local Post Officeâ„¢. The Postmaster may approve the application under certain conditions.Once you complete the online Privacy Act form, you may register a complaint. Her office will submit the Privacy Act form and complaint directly to USPS. Select a form from the list below. Select a category to limit the listing to a specific form type. Are you a victim or have you witnessed a mail-related crime? Alert Postal Inspectors to the problem and prevent others from being victimized. The Postal Service offers no-fee post office (PO) box service to customers who do not receive any form of carrier delivery. The following materials should be available in the post office lobby.